bronze 5

So ive been spending countless hours on League trying to atleast become silver again, so besides that i won 5 games lost 5 unfortunately and im bronze 5? that makes no sense to me.. idk if this is how your new ranking system works but if so it blows, i spend countless money on skins and boosts rune pages etc, ive been in bronze for the last year with the worst players on this game and im sick of it, last year i went 4-6 and was silver 4.. idk you guys need to do something about this.. Thank you.